Apparatus for sinking cleaving-wedges.



PATENTED. NOV. 15, 1904.

A. FRANCOIS.

APPARATUS FOR SINKING OLEAVING WBDGES.

APPLICATION FILED NOV. 21, 1903.

N0 MODEL.

2 SHEETS-SHEET 1.

APPARATUS FOR R0 MODEL.

A. FRANCOIS. M I

SINKING OLEAVING WEDGES. APPLICATION FILED NOV.2 1, 1903.

PATENTBD NOV. 15, 1904.

2 slums-sum 2.

Patented November 15, 1904.

PATENT OEEIcE.

ALBERT FRANQOIS, OF LIEGE, BELGIUM.

APPARATUS FOR SINKING CLEAVlNG-WEDGES.

SPECIFICATION forming part of Letters Patent N 0. 774,872, datedNovember 15, 1904.

7 Application filed November 21, 1903. Serial No. 182,137. (No model.)

To all whom it may concern:

Be itknown that I, ALBERT FRANooIs, a subject of the King of Belgium,residing at 21 Rue du Parc, Liege, Belgium. have invented certain newand useful Improvements in Apparatus for Sinking (heaving-Wedges; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

The object of the present invention is a wedge-driver for rock and thelike cleaving apparatus acting by continuous pressure on the head of thewedge and in which-the two keys or cheek-plates of the wedge, or onlyone of them, are connected to the carriage supporting the apparatus, soas to make these keys fast to the carriage, and consequently to thewedge-driver, by means of plain rods, tie-rods, jointed chains, or thelike adapted to be easily erected and removed. This arrangement alsoallows at a single setting up and without altering the position oradjustment of the carriage the preliminary hole to be drilled and thenthe sinking or forcing of the wedge therein. Various methods ofconstructing such a wedge-driver are shown in the annexed drawings, inwhich Figures 1 and 2 represent side elevations from different points ofview of one form of my improved wedge-driver, portions of thesupporting-carriage being also shown in said figures. Fig. 3 representsin elevation another embodiment of the invention. represents inelevation another embodiment of the invention. Fig. 5 represents adetail looking from the right of Fig. I. Fig. 6 is a view similar toFig. 4, representing another modification.

Figs. 1 and 2 show a Wedge-driver of this type mounted on its carriage fby means of guides or slides g and trunnions t. The carriagefis fixed inany suitable manner to the roof and the floor of the gallery, whileclamping-screws u maintain the slides g, and the pivots or trunnions itallow the wedge-driver to be given any desired inclination. Therectilinear advance of the wedge-driver is effected in a continuous andregular manner by suitable gearing-such, for instance, as a pinion andtoothed wheel, as shown in Fig. 1,

Fig. 4

operated by a handle an to rotate an internally-threaded sleeve throughwhich passes the screw 0 of the wedge-driver. At its forward end thissleeve is fitted with a collar or abutment h, resting on a ball hearing.A handle placed on the square end Z permits, as a preliminary, thescrewo to be rapidly brought against the head of the wedge 1 by therotation of this screw in the threaded sleeve. One of the keys orcheek-plates c of the wedge is fitted with a hook or head 6, with whichengages a rod or bridle c of elongated U shape, the two ends of whichare screwed and bolted behind a cross-piece it simply resting on thecarriage f. In this way the wedge and the carriage areheld together, soas to prevent distortion or deflection of the former.

Fig. 3 shows a similar arrangement in which the two keys or cheek-platesc and (Z are each connected to the cross-piece it by means of a bridleor strap a, made of a rod of elongated U shape.

In the construction shown, respectively, in side elevation and plan inFigs. 4 and 5 the one or two bridles (00f the arrangements previouslydescribed have been replaced by a simple tie-rod 6, having at its frontenda ring or eyelet 0, embracing the head or hook c of the key 0. Inthis case the rod 6 passes between the two sides of the carriage f, andit is fastened and tensioned in a similar manner as before to thecross-piece 7a, whichrests on this carriage. The second key orcheek-plate might also be connected tothe carriage by a second similartie-rod.

Fig. 6 shows a Wedge-driver acting by regular pressure, in which thetie-rod a or 6 is directly fixed at its ends to the extended pivots ortrunnions t, which serve to support the Wedge-d river on the slide,while a screw-coupling n, having right and left hand nuts, allows thelength of the tie-rods to be adjusted. Similarly the tie-rods or bridlesmight partly or wholly be replaced by chains for the purpose of securingthe wedge fast to the driver or its carriage.

The method of eflecting the regular advance of the wedge may be ofanykind, and the one or other of the systems of attachment maybe appliedthereto.

The same screw 2; of the various arrangements described and to which itis possible to impart a rotary motion by means of a handle placed on thesquare end Z serves also for the drilling of the preliminary hole in therock. 5 1t is then sufficient to replace the bit by the wedge r, toplace the keys 0 and (Z in position and connect these latter to thecarriage by means of the tie-rods or bridles a or b, the length of whichcan be adjusted, without any other modification. The rate and accuracyof the work are in this way considerably increased.

Having thus described my invention, what I claim as such, and desire tosecure by Letters Patent, is

1. A cleaving apparatus comprising a carriage, a feed-screw, means foractuating said feed-screw, a wedge, a key, and a removable bridlecarried by said carriage and adapted to be connected with the key of thesaid wedge.

2. A cleaving apparatus comprising a cara'iage, a feed-screw supportedby said carriage, a wedge and key, means for actuating said feed-screwwhereby a continuous pressure is maintained upon the head of the saidwedge, and an adjustable and removable bridle carried by said carriageand havingaconnection with the key of the said wedge.

In testimony whereof I affix my signature in presence of two Witnesses.

ALBERT FRANQOIS. Witnesses:

JEAN VEUREs, MAURICE ILERVA.

